Install Harness for Redarc Tow Pro in 2006 Toyota 4Runner with Factory Wiring

Updated 03/03/2025 | Published 05/09/2021

Products Featured in This Question

Redarc Tow-Pro Elite Brake Controller - Dash Knob - Off-Road Mode - Up to 3 Axles - Proportional

(1730)

$290.00

Redarc Tow-Pro Wiring Adapter for Tekonsha Brake Controller Harness

(100)

$27.00

Question:

Hi, will this fit my 2006 4Runner? If not, do you have the one that will I think the TPH-021?

asked by: Darren

Expert Reply:

To install a Tow Pro Elite Brake Controller like part # RED44FR in your 2006 Toyota 4Runner the correct custom install wiring kit is the part # 3040-P with the adapter # 331-TPH-017 which plugs into the port under the dash of your vehicle and the other end will plug directly into your controller.

expert reply by: Jameson C

Ilya B.

2/28/2025

Why wouldn’t the TPH-021 work? I used it but my brake controller is not sensing the trailer.. stays in sleep mode. Is that the reason? I need to switch to the Tekonsha harness? 2006 4Runner v8 4x4

Jameson C.

3/3/2025

@IlyaB The part # RED49FR which is our part number for the TPH-021 would work. At one point this harness wasn't available which is why I didn't mention it in the above answer which is a few years old.

Ilya B.

3/3/2025

@JamesonC I have the TPH-021 and it doesn’t sense a trailer. That’s why I was curious if I need to use the other harness set up instead..

Jameson C.

3/3/2025

@IlyaB Have you checked the pins of your 7-way for dirt or corrosion? most of the time this problem is fixed by taking sandpaper to the pins of the 7-way.